NEMO — ORC Rating | RegattaPages

GPH

716.8

OSN

693.9

LOA

9.34 m

Displacement

4466 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6285

Medium

0.8625

High

1.0205

Triple Offshore

Low

0.808

Medium

1.0679

High

1.2178

Boat Specifications

Dimensions

Length overall: 9.34 m
Beam: 3.41 m
Draft: 1.63 m
Displacement: 4466 kg
Crew weight: 500 kg
Wetted surface: 21.38 m²

Sails

Mainsail: 20.14 m²
Genoa: 31.29 m²
Spinnaker: 61.29 m²
Asymmetric spinnaker: 0 m²

Design

Type: ATLANTIC 31
Builder: ATLANTIC
Designer: JACOPIN & JACOPIN
Year built: 1993

Velocity Prediction

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.

6,43.7,4.011247,52,4.44,60,4.69,75,4.89,90,4.85,110,4.84,120,4.71,135,4.31,147.6,3.789997,150,3.69
8,42.2,4.697595,52,5.25,60,5.53,75,5.77,90,5.74,110,5.88,120,5.74,135,5.28,150,4.66,151.3,4.605846
10,42.4,5.294836,52,5.91,60,6.16,75,6.34,90,6.44,110,6.53,120,6.45,135,6.13,150,5.49,153,5.342273
12,42,5.786221,52,6.32,60,6.49,75,6.64,90,6.79,110,6.89,120,6.83,135,6.61,150,6.21,157.1,5.905434
14,40.7,6.001575,52,6.53,60,6.69,75,6.85,90,7.01,110,7.2,120,7.14,135,6.93,150,6.63,180,6.05
16,40.1,6.079056,52,6.64,60,6.82,75,7.03,90,7.13,110,7.51,120,7.48,135,7.24,150,6.92,180,6.51
20,40.1,6.131349,52,6.69,60,6.91,75,7.29,90,7.51,110,7.97,120,8.11,135,7.89,150,7.5,180,7.08

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.44	4.69	4.89	4.85	4.84	4.71	4.31	3.69
8	5.25	5.53	5.77	5.74	5.88	5.74	5.28	4.66
10	5.91	6.16	6.34	6.44	6.53	6.45	6.13	5.49
12	6.32	6.49	6.64	6.79	6.89	6.83	6.61	6.21
14	6.53	6.69	6.85	7.01	7.2	7.14	6.93	6.63
16	6.64	6.82	7.03	7.13	7.51	7.48	7.24	6.92
20	6.69	6.91	7.29	7.51	7.97	8.11	7.89	7.5

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.7°	2.9	147.6°	3.2
8	42.2°	3.48	151.3°	4.04
10	42.4°	3.91	153°	4.76
12	42°	4.3	157.1°	5.44
14	40.7°	4.55	180°	6.05
16	40.1°	4.65	180°	6.51
20	40.1°	4.69	180°	7.08

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